Morphology and thermal degradation studies of PHB/acetylated lignin foils

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F19%3APU132348" target="_blank" >RIV/00216305:26310/19:PU132348 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Morphology and thermal degradation studies of PHB/acetylated lignin foils
Original language description
Poly(3-hydroxybutyrate) (PHB) is biopolymer with the advantages including bio-origin, biocompatibility, and biodegradability. Unfortunately, rheological and mechanical properties of PHB are influenced by the range of thermal degradation occurred during polymer processing. This work takes advantage of acetylated lignin reinforcing PHB composites that originate from grape bunches or seeds. Lignin was isolated by formic acid/ acetic acid. PHB/acetylated lignin composites were prepared by solution casting followed by thermoforming. The solubility and compatibility of lignin have been improved by acetylation. Neat PHB foil was very brittle reaching crystallinity of 70 %. Such high crystallinity causes high brittleness, which is not suitable for foils with packaging application. Lignin is a rigid highly cross-linked natural polymer consisting of phenylpropane units with no plasticizing effect. We will present that there is a high potential for preparation of PHB/PHA blends to improve the flexibility of PHB/
Czech name
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Czech description
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Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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